How you get the public to pick up their trash and place the litter in commercial trash can

When it comes to commercial trash cans in open spaces there's an amazing paradox. People can find time to congregate in green areas or parks to enjoy the beauty of the outdoors, but when they leave, many can't seem to find the time to throw their garbage away.

For the most part, commercial garbage cans are right there. Highly visible.

So what's the thinking? Nature is nice but who wants to clean it up?

Or maybe, let the maintenance crew pick up my mess? That's what they get paid for, right?

Or, geez, I'm kind of tired from chasing a football or soccer ball all day, that big commercial garbage can over there sure seems far away.

Perhaps i